Procab Listed by losttrust Ransomware Group: Ransomware Claim — What’s Alleged & What To Do

On 26 September 2023, the industrial valve supplier Procab was listed by the ransomware group losttrust. Public reporting states that internal files were exfiltrated in a ransomware attack. The number of people affected remains unknown, and wider technical detail about how the incident unfolded has not been disclosed.

For customers, partners and staff connected to a process-industry supplier, a claim of this kind raises practical questions about what may have left the organisation’s systems and what steps are worth taking while official confirmation stays limited.

Breaking down the breach

According to the available record, Procab appeared on a losttrust listing dated 26 September 2023. The reported description characterises the event as a ransomware attack in which internal files were allegedly exfiltrated. No public figure has been given for the volume of data, the number of systems involved, or the count of individuals whose information may have been included.

Method of initial access, dwell time, encryption status of production systems, and any negotiation or recovery timeline are undisclosed. The listing itself is a claim by the group; independent confirmation of the full scope has not been supplied in the facts available here. What is stated is limited to the organisation’s name, the reporting date, attribution to losttrust, and the description of internal files taken during a ransomware incident.

Who is losttrust?

losttrust is a ransomware operation that became visible in the public threat landscape in 2023. Like other groups in the double-extortion model, it has typically combined encryption of victim environments with theft of data, then pressured organisations by threatening to publish material on a dedicated leak site if demands were not met. Listings on such sites are used to advertise claimed victims and, in many cases, to release samples or larger archives when the group asserts non-payment.

Public reporting on losttrust has described relatively standard ransomware tradecraft: intrusion, lateral movement, data staging and exfiltration, followed by deployment of encryptors and leak-site posts. The group’s claims about any specific victim—including Procab—should be read as assertions by the actors themselves unless corroborated by the victim or by independent investigation. No additional statements attributed to losttrust about Procab beyond the listing and the exfiltration description are present in the facts.

Who is Procab?

Procab is a valve and flow-control supplier serving the process industry. Company material describes a focus on valves and accessories for controlling flows, support for improvement work, ongoing operational needs, projects and complete systems for plants of varying size. The firm traces its founding to 1984 and its present form as a modern valve company to 2003, emphasising knowledge, service and long-term customer relationships.

Organisations in this sector sit between manufacturers, engineering contractors and plant operators. They commonly hold commercial correspondence, order and project files, technical specifications, supplier and customer contact details, and internal business records. A ransomware incident affecting such a firm matters because disruption can affect supply chains and because retained business and personal data, if exposed, can be misused for fraud or further intrusion against partners.

What data was at risk

The facts name the exposed material as internal files exfiltrated in a ransomware attack. No inventory of file types, no record counts and no confirmation of whether customer, employee or partner personal data were included have been published in the material provided.

Companies of Procab’s type typically retain contracts, quotations, engineering drawings or datasheets, email archives, invoicing records and contact databases. Those categories are industry norms, not confirmed contents of this incident. Exact contents remain unconfirmed; readers should treat any specific claim about named individuals or document sets as unverified until Procab or a formal notification states otherwise.

What's at stake

For people whose details may have sat inside internal files, the practical risks include targeted phishing that references real projects or suppliers, credential stuffing if work emails and passwords were stored together, and business-email compromise aimed at finance or procurement staff. For the organisation, stakes include operational interruption, cost of investigation and recovery, contractual notification duties, and erosion of trust with plants and partners that rely on timely valve and accessory supply.

Because the scale is unknown, it is not possible to say how widely those risks extend. The absence of a published affected-person count means individuals cannot yet know from public sources alone whether they are in scope; caution is still reasonable for anyone who has exchanged contracts, orders or personal data with the firm.

What to do if you're exposed

If you have a relationship with Procab—as a customer, supplier or employee—consider the following measured steps while waiting for any formal notice:

• Treat unexpected emails or calls that reference Procab projects, invoices or contacts with extra scepticism; verify through a known channel before opening attachments or approving payments.
• Change passwords for work-related accounts, especially if you reused them elsewhere, and enable multi-factor authentication where it is available.
• Monitor bank and credit activity for unfamiliar activity if you ever shared financial or identity documents with the company.
• Keep records of any suspicious contact and report it to your internal security or fraud team if you are in a corporate role.
• Run a free exposure scan of your email addresses to see whether they already appear in known breach datasets, and use the result only as one signal alongside official updates from Procab.

Public detail on this incident remains limited. Rely on direct communications from the organisation for confirmation of scope, and avoid acting on unverified dumps or third-party claims that go beyond what has been reported.

AICompiled with AI assistance from public sources and published under our editorial standards.